Genotype data for: Population genomic and historical analysis suggests a global invasion by bridgehead processes in Mimulus guttatus

• Main Author: Vallejo-Marin, Mario
• Other Authors: NERC - Natural Environment Research Council, Other, National Geographic, [e-mail], University of Stirling (Biological and Environmental Sciences)
• Format: Dataset
• Language: unknown
• Published: University of Stirling. Faculty of Natural Sciences 2021
• Subjects: Mimulus; genome; population genomics; invasive species; Erythranthe; Genotype-by-Sequencing; ::Plant and crop science::Plant developmental biology::Gene networks; Alaska; Aleutian Islands
• Online Access: http://hdl.handle.net/11667/168

Imperfect historical records and complex demographic histories present challenges for reconstructing the history of biological invasions. Here we combine historical records, extensive worldwide and genome-wide sampling, and demographic analyses to investigate the global invasion of Mimulus guttatus from North America to Europe and the Southwest Pacific. By sampling 521 plants from 158 native and introduced populations genotyped at >44,000 loci, we determined that invasive M. guttatus was first likely introduced to the British Isles from the Aleutian Islands (Alaska), followed by admixture from multiple parts of the native range. We hypothesise that populations in the British Isles then served as a bridgehead for vanguard invasions worldwide. Our results emphasise the highly admixed nature of introduced M. guttatus and demonstrate the potential of introduced populations to serve as sources of secondary admixture, producing novel hybrids. Unravelling the history of biological invasions provides a starting point to understand how invasive populations adapt to novel environments. VCF file of genotypes of Mimulus guttatus